Disabling IPv6 ND Proxy

IPv6 ND Proxy can be disabled on an individual port or a range of ports.
  1. Enter global configuration mode.
    Router# configure terminal
  2. Specify the interface to be disabled in interface configuration mode.
    Router(config)# interface ethernet 1/2/1 
  3. Disable IPv6 ND proxy on the specified interface
    Router(config-if-e10000-1/2/1)# ipv6 nd proxy-disable